Video magnification system

• US 6,064,426 A
• Filed: 07/17/1998
• Issued: 05/16/2000
• Est. Priority Date: 07/17/1998
• Status: Expired due to Fees

• Current Assignee: Linden K. Waterman
• Original Assignee: Linden K. Waterman
• Inventors: Waterman, Linden K.
• Primary Examiner(s): Le, Vu
• Assistant Examiner(s): DIN, LUANNE PAN
• Application Number:
  US09/118,328
• Time in Patent Office: 669 Days
• Field of Search: 348/373, 348/375, 348/63, 248/917, 248/918, 248/919, 248/920, 248/921, 248/922, 248/923, 248/924, 248/280.11, 248/281.11, 294/139, 354/81, 362/413, 362/402, 362/418, 362/419, 362/427
• US Class Current: 348/63
• CPC Class Codes: H04N 7/183 for receiving images from a single remote source

Abstract

Embodiments of a vision aid video magnification system for low-vision persons are shown and described. The system includes a balanced arm with a first portion that swivels on a base, a second portion connected to the enclosed camera, and an elbow between the first and second portions. The elbow includes a sliding spring fulcrum which enhances the smooth movement of the second arm portion and camera. The first arm portion includes an inner spring between arm tubes that helps eliminate the dead area that may be otherwise present in balanced arms. Other improvements include a flexible camera mount that preferably swivels relative to the arm, and a mirror attachment for personal care and other use. The vision aid video magnification system allows enhanced, smooth movement and versatility.

Claims

1. A vision aid system comprising an articulated arm, a camera, and a camera mount assembly connecting said camera to the articulated arm, the articulated arm comprising:

a proximal arm assembly having a first end and second end, said first end for connection to a surface;

a distal arm assembly having a first end and a second end;

an elbow mounting bracket pivotally connecting said first end of the distal arm assembly to said second end of the proximal arm assembly, the elbow mounting bracket having an elongated distal surface having an inner end and an outer end, wherein the inner end is nearer the distal arm assembly than is the outer end;

wherein the articulated arm bends at the elbow mounting bracket to swing the distal arm assembly to a first position close beside the proximal arm assembly and to swing the distal arm assembly to a second position extending outward from and generally parallel to the proximal arm assembly; and

a support spring having a distal end attached to the distal arm assembly and having a proximal end attached to the elbow mounting bracket;

wherein said support spring proximal end is slidably attached to the elbow mounting bracket elongated distal surface and slides along the elongated distal surface from said inner end to the outer end when the distal arm assembly moves from said first position to said second position, whereby sliding of the support spring proximal end along the elongated distal surface allows the distal arm assembly to move smoothly and easily into substantially any position between said first position and said second position with little arm backlash.

2. A vision aid system as in claim 1, wherein the elbow mounting bracket comprises a elbow extension having a curved upper edge and an upwardly-extending protrusion, wherein the curved upper edge is said elongated distal surface along which the support spring slides and wherein the protrusion upends from the outer end of the elongated distal surface and prevents the support spring proximal end from sliding off of the elbow mounting bracket.

3. A vision aid system as in claim 2, wherein the elbow mounting bracket comprises a first end to which the proximal arm assembly is pivotally attached, a second end opposite the first end which is the elbow extension, and a central area between said first end and second of the elbow mounting bracket to which the distal arm assembly is pivotally attached.

4. A vision aid system as in claim 1, wherein said camera mount assembly comprises a gooseneck tube for fine adjustment of the camera location relative to the second end of the distal arm assembly.

5. A vision aid system as in claim 4, further comprising a base assembly connected to the proximal arm assembly first end for connection to a horizontal surface, wherein the camera mount assembly includes a camera mounting bracket connecting the gooseneck tube to the distal arm assembly and having a vertical axis, and wherein the gooseneck swivels in a horizontal plane about 270°

on the vertical axis.

6. A vision aid system as in claim 1, further comprising a base assembly connected to the proximal arm assembly first end for connection to a horizontal surface, and wherein said proximal arm assembly comprises:

an upper proximal arm tube having a bottom surface;

a lower proximal arm tube having an upper surface;

a proximal suspension spring extending from the lower proximal arm tube to the base assembly for supporting the proximal arm assembly; and

an inner compression spring extending between and contacting the upper surface of the lower proximal arm tube and the bottom surface of the upper proximal arm tube.

7. A vision aid system as in claim 6, wherein the inner compression spring is attached to said upper surface and contacts but is not attached to said bottom surface.

8. A vision aid system as in claim 1, further comprising a mirror connected to the camera near and at an angle to a lense of the camera.